I got a sample of Serious Dark Circles and I was impressed. I'm in school for 13 hours a day, everyday and my homework takes atleast 4 hours a night so, you can see why I have dark circle under my eyes. I tryed it but, maybe its my psychological mind telling me it worked. I don't know. 2 days is too little to know!

I tried hylexin and I got great results faster than I expected. After about a week I started to notice a difference. Even other people said they noticed a significant difference. The thing to remember about this product is that it isn't perfect. Personally my dark circles were significantly lightened but not completely gone. It is very pricey so you also want to factor that in. The only draw back ...read morefor me was the fact that it wasn't moisturizing. It seems that it either works great or it doesn't work at all for people, so if you're willing to risk losing the money I'd give this product a try.

This product doesnt work in 10 days or a month- you have to keep using it --I keep it in the fridge and use it twice a day and have seen some good result-especially if my eyes are really tired or didnt have a lot of sleep. I've been using it about a year -it is expensive though but one tube lasts me about 4 months.

I used this dilegently and it did nothing for me. I have heriditary dark circles and allergies. I wasn't expecting a miracle but any improvement would have been worth it; but no improvement at all was a waste of my money.